For the US flicker,
The Soldier and the Lady (RKO 1937)I think this was mounted on a wall, at one time. On a couple areas of the border were some little pieces of tape and adhesive residue, which came off. And the little spatter of red paint on part of the yellow credits was water-based. I did a little test with some water and a Q-tip, and it dissolved & came right off
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